The ADV611 is video encoders/decoders optimized for closed circuit TV (CCTV) applications. With the this, you can define a portion of each video field to be at a higher quality level relative to the rest of the field. This quality box feature significantly increases compression of less impor-tant background details, while retaining the image’s overall context. Additionally, the unique subband coding architecture of the ADV611 offer many application-specific advantages. A review of the General Theory of Operation and Applying the this codec sections will help you get the most use out of the ADV611 in any given application.The ADV611 accept component digital video through the Video Interface and outputs a compressed bitstream though the Host Interface in Encode Mode. While in Decode Mode, the ADV611 accept compressed bitstream through the Host Interface and outputs component digital video through the Video Interface. The host accesses all of the ADV611 control and status registers using the Host Interface.